While recognizing the validity of your argument I am having a hard time resisting the urge to point out that we are commenting on code that uses the "Observer pattern" to construct a class hierarchy with accessors for "second", "minute", and "hour" to implement a "digital clock".

The code in this article confirms the suspicion of pattern skeptics that GoF-style patterns lead to code constructed out of pick-and-mix patterns instead of actual sensible code.